A sample of 820 adults showed that 31 of them had no credit cards, 178 had one card each, 98 had two cards each, 81 had three cards each, 90 had four cards each, and 342 had five or more cards each. Suppose one adult is randomly selected from these 820 adults. Find the probability that this adult has exactly three credit cards.   Round your answer to two decimal places. P(A)=

Q: 46% of all violent felons in the prison system are repeat offenders. If 33 violent felons are…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: At one private college, 34% of students are business majors. Suppose that 260 students are randomly…

A: The probability that the proportion of business students in the sample differs from the population…

Q: Thirty percent of a population of consumers is reputed to prefer a particular brand, say Brand A, of…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: In a large population, 55 % of the people have been vaccinated. If 3 people are randomly selected,…

A: Probability that people have been vaccinated = 55% = 0.55 Sample size, n = 3

Q: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

A:

Q: In a survey, 58% of American adults said they had never heard of the Internet. If 20 American adults…

A:

Q: In a recent survey, 65% of the community favored building a health center in their neighborhood. If…

A: It is given that the number of citizens is 14. There is 65% of the community favored building a…

Q: A.A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at…

A:

Q: In a survey of 1171​ people, 852 people said they voted in a recent presidential election. Voting…

A: The binomial distribution can be approximated by normal distribution if the sample size is large…

Q: A factory received a shipment of 15 sprockets, and the vendor who sold the items knows there are 7…

A: Let X= number of defective items.    a) We have to find P(X=6) If 6 items are defective then we can…

Q: The opera theater manager assumes that 10% of the opera tickets for tonight's show have been sold.…

A: Let X denotes tickets being sold. Probability of a ticket being sold (p) is given to be 0.1. a…

Q: Suppose a math class contains 31 students, 19 females (two of whom speak French) and 12 males (three…

A: We have given that a math class contain 31 students, 19 females( 2 speaks French) and 12 males(3…

Q: About 32% of students participate in a community volunteer program outside of school if 30 students…

A: Let X be the number of students participate in a community volunteer program from binomial…

Q: Suppose a math class contains 47 students, 24 females (four of whom speak French) and 23 males (six…

A:

Q: According to a survey by the Administrative Management Society, one-half of U.S. companies give…

A: Given: Sample size of companies (n) = 6 Probability of a company giving vacation (p) = 0.5 Let X be…

Q: A lie detector is known to be 70% reliable when the person is quilty and 95% reliable when the…

A: The machine is reliable when person is guilty is 70% The machine is reliable when person is not…

Q: 24% of all students enjoy the school lunch.  If there are 2000 students at the school, what is the…

A: It is given that n=2000 and p=0.24.

Q: A survey found that one out of five Americans say he or she has visited a doctor in any given month.…

A: From the provided information, Sample size (n) = 10 Probability of Americans who visited a doctor in…

Q: a proportion of 0.4 are not satisfied with the service offered by the store. In a random sample of…

A: According to central limit theorem if the sample size n and population proportion p satisfies np≥10…

Q: In a large population, 52 % of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: Suppose a math class contains 40 students, 17 females (three of whom speak French) and 23 males…

A: Given information is shown in the table   Speak French Does Not Speak French Total…

Q: As a promotional offer, a newly opened movie theatre is awarding 22% of their new patrons with a…

A:

Q: three out of four university students under 25 years old have eaten eggs for breakfast. If a random…

A: Solution: Given data: Probability, P = 3/4  = 0.75 Sample size (n) = 20 To find : the probability…

Q: A civil engineer is selected from a staff of 10 to supervise a concrete pouring project by selecting…

A:

Q: A manufacturer claims that a new drug is 85% effective. If the drug is given to 10 patients, find…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: Suppose that a person rolls two balanced dice three times in succession. Determine the probability…

A: Here Given two balanced die are rolled  so Probability of each outcome is  same And each is rolled…

Q: In a recent survey, 60% of the community favored building a health center in their neighborhood. If…

A: Given that,60% of the community favored building a health center in their neighborhood.Probability,…

Q: A certain group of women had a 0.73% rate of red/green color blindness. If a woman is randomly…

A: It is given that a certain group of women had a 0.73% rate of red/green color blindness.

Q: Suppose    52%    of    students    support    the    idea    of    paying    student    government…

A:

Q: A poll showed that among potential voters, 36% support Candidate A in the upcoming election, 36%…

A: Q1. Given, P(A) = 0.36 , P(B) = 0.36 , P(C) = 0.28 C = Undecided…

Q: Suppose a math class contains 42 students, 18 females (six of whom speak French) and 24 males (four…

A: given that , total students =42 , female students = 18, male students = 24. Female students who can…

Q: In an experiment involving smoke detectors, an alarm was set off at a college dormitory at 3 a.m.…

A:

Q: In a clinical trial, 3% of the patients in the study experienced fatigue as a side effect. Suppose…

A: Given that  n=20 , p=3%=0.03 , q=1-p=1-0.03=0.97 X~Binomial(n=20 , p=0.03) X=Number of the patients…

Q: According to a study on teenage shopping behavior, it was found that 74% of female teens regularly…

A: Answer: Given that: p= 0.74 , n= 6 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: In a recent survey, 72% of the community favored building a health center in their neighborhood. If…

A: It is given that n = 14 and p = 0.72.

Q: As a promotional offer, a newly opened movie theatre is awarding 22% of their new patrons with a…

A: Event: In probability theory, an event is an outcome or a set of outcomes of a random experiment to…

Q: Suppose a math class contains 23 students, 11 females (five of whom speak French) and 12 males (four…

A: From the information,   French Not French Total Female 5 6 11 Male 4 8 12 Total 9 14 23

Q: In a retirement community, 13% of cell phone users use their cell phones to access the internet. In…

A:

Q: According to a study on teenage shopping behavior, it was found that 75% of female teens regularly…

A: Solution: Let X be the number of teenagers do their shopping in stores and n be the number of…

Q: 75% of American adults received a speeding ticket. If a random sample of 20 adults is selected, find…

A:

Q: Suppose a math class contains 27 students, 14 females (six of whom speak French) and 13 males (three…

A: Solution: From the given information, a class contains 14 females. Out of which 6 speck French.…

Q: Of 300 male and 270 female employees at the home office of Gibraltar Insurance Company, 140 of the…

A: For a randomly selected employee,Let M denote the event that the employee is a man.Let F denotes the…

Q: in a large population 68% of the people have been vaccinated,if 4 people were selected, what is the…

A:

Q: A survey of families revealed that 58% of all families eat turkey at holiday meals, 44% eat ham, and…

A:

Q: Of all 3- to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is…

A:

Q: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

A: Given,n=12p=0.26Let X=no.of couples will have a destination weddingX~Binomial(n=12 ,…

Q: The athletic department of a school has 13 full-time coaches, and 4 of them are female. The director…

A: GivenTotal no.of full-time coaches = 13No.of female coaches=4

Q: In a survey of 1000 social-media account holders aged 18 years and older conducted by a certain…

A: Total numbers of account holders: n=1000 Probability that they have one or two account is: p=0.61…

Q: A survey found that 30% of pet owners had their pets bathed professionally rather than do it…

A:

Q: Suppose a math class contains 41 students, 19 females (two of whom speak French) and 22 males (three…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.